EP1459670B1 - Pump dispenser for soap or similar - Google Patents

Pump dispenser for soap or similar Download PDF

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Publication number
EP1459670B1
EP1459670B1 EP04003104A EP04003104A EP1459670B1 EP 1459670 B1 EP1459670 B1 EP 1459670B1 EP 04003104 A EP04003104 A EP 04003104A EP 04003104 A EP04003104 A EP 04003104A EP 1459670 B1 EP1459670 B1 EP 1459670B1
Authority
EP
European Patent Office
Prior art keywords
hollow
piston
hollow piston
membrane
dispenser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04003104A
Other languages
German (de)
French (fr)
Other versions
EP1459670A2 (en
EP1459670A3 (en
Inventor
Ulrich Dipl.-Ing. Müller-Boysen
Siegfried Dipl.-Ing. Keusch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ernst Wagner & Co KG GmbH
Original Assignee
Ernst Wagner & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ernst Wagner & Co KG GmbH filed Critical Ernst Wagner & Co KG GmbH
Publication of EP1459670A2 publication Critical patent/EP1459670A2/en
Publication of EP1459670A3 publication Critical patent/EP1459670A3/en
Application granted granted Critical
Publication of EP1459670B1 publication Critical patent/EP1459670B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume
    • A47K5/1204—Dispensers for soap for liquid or pasty soap dispensing dosed volume by means of a rigid dispensing chamber and pistons

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Reciprocating Pumps (AREA)
  • Closures For Containers (AREA)
  • Detergent Compositions (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

The liquid soap dispenser has a reservoir (2) with an outlet (9) to the cylinder (4). The piston (5) is hollow and a bore (10) may connect the reservoir outlet to the interior of the piston. A hollow nut (17) at the end of the piston holds a membrane (15) which may be pressed by the operating lever (6). A return spring (7) presses the cylinder towards the lever. A further bore and slit (14) in the piston allow soap to flow through to the dispensing nipple (12).

Description

Die Erfindung bezieht sich auf einen Spender für Seifen oder dergleichen mit Pumpe, gemäß dem Oberbegriff des Anspruchs 1. Eine solcher Spender ist aus der GB-A-701 223 bekannt. Bei anderen bekannten Ausführungsformen ist der Zylinder und damit der Druckraum an seinem in Schubrichtung des Kolbens vorderen Ende durch eine Membran abgeschlossen, welche mittels einer Hohlschraube zwischen dieser und den Zylinderwänden festgeklemmt ist. Bei einer Reparatur - vor allem, wenn der Kolben ersetzt werden muss - ist es erforderlich, die Hohlschraube zu lösen, die Membran zu entfernen und dann noch den Kolben herauszunehmen. Abgesehen von der etwas umständlichen Handhabung ergeben sich meist Schwierigkeiten beim nachfolgenden Zusammenbau der Teile, da die Membran exakt eingesetzt werden muss und sich in ihrer Lage beim Festklemmen durch die Hohlschraube nicht verschieben darf, um Undichtigkeiten zu vermeiden.The invention relates to a dispenser for soaps or the like with pump, according to the preamble of claim 1. Such a dispenser is known from GB-A-701 223 known. In other known embodiments, the cylinder and thus the pressure chamber is closed at its front end in the thrust direction of the piston by a diaphragm which is clamped by means of a hollow bolt between this and the cylinder walls. In a repair - especially when the piston has to be replaced - it is necessary Loosen the banjo bolt, remove the diaphragm and then remove the piston. Apart from the somewhat cumbersome handling usually difficulties arise in the subsequent assembly of the parts, since the membrane must be used exactly and must not move in their position when clamping through the hollow screw to avoid leaks.

Um eine Vereinfachung des Aufbaues der Pumpe und eine Erleichterung bei Reparaturen zu schaffen, ist die Membran erfindungsgemäß am Hohlkolben angeordnet und schließt ihn an seinem in Schubrichtung hinteren Ende ab. Bei Reparaturen oder einem Auswechseln des Kolbens muss nunmehr nur noch der Kolben herausgezogen werden und anschließend wieder eingesetzt bzw. durch einen neuen ersetzt werden. Dagegen entfällt ein Lösen und Wiedereinsetzen der Membran völlig. Mit einer solchen Ausführungsform ist es auch einem Laien möglich, die Pumpe selbst zu warten, ohne dass er nach dem Zusammenbau mit Undichtigkeiten rechnen muss.In order to simplify the construction of the pump and to facilitate repairs, the membrane is arranged according to the invention on the hollow piston and closes it at its rear end in the thrust direction. When repairs or replacement of the piston now only the piston must be pulled out and then reinstated or replaced by a new one. In contrast, a loosening and reinserting the membrane completely eliminated. With such an embodiment, it is also possible for a layman to maintain the pump itself, without having to reckon with leaks after assembly.

Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung, und zwar einen Querschnitt durch die Pumpe eines Seifenspenders.The drawing shows an embodiment of the invention, namely a cross section through the pump of a soap dispenser.

Im Pumpengehäuse 1 ist ein Zwischenbehälter 2 für Seife vorgesehen, welche diesem aus einem nicht dargestellten Vorratsbehälter über den Stutzen 3 zugeführt wird. Unterhalb des Zwischenbehälters ist ein Zylinder 4 vorgesehen, in welchem ein Hohlkolben 5 mittels eines Handhebels 6 gegen die Kraft einer Feder 7 in Vorschubrichtung 8 zum Druckaufbau verschoben werden kann.In the pump housing 1, an intermediate container 2 is provided for soap, which is supplied to this from a reservoir, not shown, via the nozzle 3. Below the intermediate container a cylinder 4 is provided, in which a hollow piston 5 can be moved by means of a hand lever 6 against the force of a spring 7 in the feed direction 8 for pressure build-up.

Der Zwischenbehälter 2 weist einen Auslass 9 auf, welcher in der aus der Zeichnung zu entnehmenden Grundstellung des Hohlkolbens 5 über eine Querbohrung 10 mit dem Inneren 11 des Hohlkolbens 5 in Verbindung steht. Die Spenderöffnung 12 des Zylinders 4 ist in dieser Stellung durch eine Dichtung 13 verschlossen. Sobald der Kolben 5 in Pfeilrichtung 8 verschoben wird, kommen die mit dem Hohlkolbeninnere 11 in Verbindung stehende Öffnung 14 des Hohlkolbens 5 und die Spenderöffnung 12 zur Deckung, während die Querbohrung 10 verschlossen wird.The intermediate container 2 has an outlet 9, which is in the drawing to be taken from the drawing basic position of the hollow piston 5 via a transverse bore 10 with the interior 11 of the hollow piston 5 in conjunction. The dispenser opening 12 of the cylinder 4 is closed by a seal 13 in this position. As soon as the piston 5 is displaced in the direction of arrow 8, the opening 14 of the hollow piston 5 communicating with the hollow piston interior 11 and the dispensing opening 12 come to coincide, while the transverse bore 10 is closed.

Der Hohlkolben 5 ist an seinem in Vorschubrichtung 8 hinteren Ende 14 durch eine Membran 15 abgeschlossen. Dabei wird die Membran durch eine auf das Gewinde 16 des Hohlkolbens 5 aufgeschraubte Hohlmutter 17 an den Hohlkolben 5 angepresst. Für die Hohlmutter 17 ist am Hohlkolben 5 noch eine Verdrehsicherung 18 vorgesehen.The hollow piston 5 is closed at its rear end 14 in the feed direction 14 by a membrane 15. The membrane is pressed by a screwed onto the thread 16 of the hollow piston 5 hollow nut 17 to the hollow piston 5. For the hollow nut 17, a rotation lock 18 is still provided on the hollow piston 5.

In der Ausgangsstellung des Hohlkolben 5 kann Seife durch die Querbohrung 10 in den Hohlkolben 5 und damit in den Zylinder 4 eintreten. Bei Betätigung des Handhebels 6 wird der Hohlkolben 5 in Pfeilrichtung 8 verschoben, sodass sich die Membran 15 durch den auftretenden Druck auswölbt. Dabei wird gleichzeitig die Querbohrung 10 verschlossen, sodass keine Seife in den Zwischenbehälter 2 zurückfließen kann. Sobald die Öffnung 14 des Hohlkolbens 5 über der Spenderöffnung liegt, kann Seife aus dieser austreten, wobei der Druck nachlässt und die Membran 15 sich entspannt.In the initial position of the hollow piston 5 soap can enter through the transverse bore 10 in the hollow piston 5 and thus in the cylinder 4. Upon actuation of the hand lever 6, the hollow piston 5 is displaced in the direction of arrow 8, so that the membrane 15th bulges through the pressure that occurs. At the same time, the transverse bore 10 is closed, so that no soap can flow back into the intermediate container 2. As soon as the opening 14 of the hollow piston 5 is above the dispensing opening, soap can escape from the latter, whereby the pressure decreases and the membrane 15 relaxes.

Zum Auswechseln des Kolbens 5 oder zur Durchführung einer Reparatur können der Kolben 5 nach Abnahme des Handhebels 6 aus dem Zylinder 4 entgegen der Pfeilrichtung 8 nach hinten herausgezogen und die Reparaturarbeiten vorgenommen werden, ohne dass die Membran 15 entfernt und wieder neu eingesetzt werden muss. Dadurch werden die Wartungsarbeit erleichtert und nachträgliche Undichtigkeiten mir Sicherheit verhindert.To replace the piston 5 or to carry out a repair of the piston 5 can be withdrawn after removal of the hand lever 6 from the cylinder 4 against the arrow 8 towards the rear and the repair work can be done without the membrane 15 has to be removed and reinstated. This facilitates the maintenance work and prevents subsequent leaks and safety.

Claims (5)

  1. Dispenser for soaps or the like, having a pump which has a hollow piston (5) which can be displaced in a cylinder (4) counter to resilient force (7), which is open at the front in a feed direction (8) and which is connected to a soap container (2) at least in the initial position thereof, the pressure space being closed by membrane (15) which is arranged on the hollow piston (5), characterised in that the membrane (15) closes the hollow piston (5) at the rear end (14) thereof in the feed direction (8).
  2. Dispenser according to claim 1, characterised in that the membrane (14) is secured to the hollow piston (5) by means of a hollow connection piece (17).
  3. Dispenser according to claim 2, characterised in that the hollow connection piece is constructed as a hollow nut (17), which is screwed onto the end (14) of the hollow piston (5) that is provided with a thread (16).
  4. Dispenser according to claim 3, characterised in that the hollow piston (5) has a twisting prevention means (18) for the hollow nut (17).
  5. Dispenser having a hollow piston which comprises plastics material according to one or more of the preceding claims, characterised in that the hollow piston (5) is injection-moulded in one piece with the membrane (14).
EP04003104A 2003-03-19 2004-02-12 Pump dispenser for soap or similar Expired - Lifetime EP1459670B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20304359U DE20304359U1 (en) 2003-03-19 2003-03-19 Dispenser for soaps or the like with pump
DE20304359U 2003-03-19

Publications (3)

Publication Number Publication Date
EP1459670A2 EP1459670A2 (en) 2004-09-22
EP1459670A3 EP1459670A3 (en) 2005-02-02
EP1459670B1 true EP1459670B1 (en) 2008-06-11

Family

ID=7980920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04003104A Expired - Lifetime EP1459670B1 (en) 2003-03-19 2004-02-12 Pump dispenser for soap or similar

Country Status (3)

Country Link
EP (1) EP1459670B1 (en)
AT (1) ATE397882T1 (en)
DE (2) DE20304359U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100013391A1 (en) * 2021-05-24 2022-11-24 Pan Group S R L Dosing device for semi-solid foods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191019007A (en) * 1910-08-12 1911-07-20 Eduardo Squadrilli Improvements in or relating to Apparatus for Delivering Limited Quantities of Liquids.
GB701223A (en) * 1951-04-25 1953-12-23 Churchill Henry Winston S Improvements relating to apparatus for dispensing pastes, liquids and other substances
US4165824A (en) * 1976-05-10 1979-08-28 Sud Mohinder P Self cleaning shampoo dispenser

Also Published As

Publication number Publication date
ATE397882T1 (en) 2008-07-15
EP1459670A2 (en) 2004-09-22
DE502004007341D1 (en) 2008-07-24
EP1459670A3 (en) 2005-02-02
DE20304359U1 (en) 2003-06-18

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